272 BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



Xanthorrms dominicensis D'Orbigny, in La Sagra's Hist. Nat. Cuba, Ois., 1839, 

 115, pi. 19 fti*'.— GuNDLACH, Journ. Bost. Soc. N. H., vi, 1852, 318 (Cuba).— 

 Cabanis, Journ. fiir Orn., 1856, 10. — Brewer, Proc. Bost. Soc. N. H., vii, 

 1860, 307 (Cuba). 



Icterus virescens (not of Daudin, 1800) Vigors, Zool. Journ., iii, Dec, 1827, 441 

 (near Havana, Cuba; coll. Zool. Soc. Lond.). 



(?) Ps{arocolius'] melanopsis Wagler, Isis, 1829, 759 (no locality). 



IPendidinufi'] kypomelas Bonaparte, Consp. Av., i, 1850, 433 (Cuba; "Mexico;" 

 ex Icterus hypomelas Du Bus, manuscript). 



Pendulinus hypomelas Cassin, Proc. Ac. Nat. Sci. Phila., 1867, 59 (nionogr.). 



Xanthornus hypomelas Gundlach, Repert. Fisico-Nat. Cuba, i, 1866, 287; Journ. 

 fiir Orn., 1874, 128. 



Icterus hypomelas Sclater, Ibis, 1883, 360 (monogr.); Cat. Birds Brit. Mus., xi, 

 1886, 370 (San Cristobal, Cuba). — Cory, Auk, iii, 1886, 215 (synonymy and 

 diagnosis) ; Birds W. I., 1889, 102; Cat. W. I. Birds, 1892, 14, 110, 129 (Cuba; Isle 

 of Pines).— Chapman, Bull. Am. Mus. N. H., iv, 1892, 305 (habits, etc.; crit.). 



\^Icterus'] liypomelas Sclater and Salvin, Nom. Av. Neotr., 1873, 36. — Cory, List 

 Birds W. L, 1885, 13. 



Icterus dominicensis, var. hypomelas Bryant, Proc. Bost. Soc. N. H., xi, 1866, 254, 

 footnote (crit.). — Baird, Brewer, and Ridgway, Hist. N. Am. Birds, ii, 1874, 

 182, footnote. 



ICTERUS PORTORICENSIS (Bryant). 

 PORTO RICAN ORIOLE. 



Adults {sexes alike). — Similar to /. doniinicensls., but ))ill decidedly 

 larger and relatively stouter, upper riuiip l)lack, flanks black, and tail- 

 coverts (especially the upper) partly black; similar also to /. hypomelas.^ 

 but upper rump black, under tail-coverts mostly yellow, and lower part 

 of abdomen yellow, the bill also much longer, middle toe longer, and 

 tarsus shorter. 



Immature {second year?). — Very different from corresponding stage 

 of /. liypomdas. Head and neck (except pileum and hindneck) gall- 

 stone or saffron 3'ellow, brightest or clearest on malar region, chin, and 

 throat, more or less tinged with russet on lower throat, auricular 

 region, and lores; chest and breast dull gallstone yellow or light raw 

 sienna, passing into a more buffy olive hue on sides and flanks, the 

 under tail-coverts light ^^ellowish olive or olive-yellow; pileum and 

 hindneck cinnamon-brownish, becoming more yellowish on forehead; 

 back and scapulars uniform light grayish brown; rump and upper tail- 

 coverts yellowish olive; lesser and middle wing-coverts dull olive- 

 yellowish or light yellowish olive; rest of wings deep hair brown with 

 paler edgings; edge of wing clear yellow; tail olive or olive-greenish. 



Young {first ymr). — Similar to the preceding, but coloration duller 

 and wing-edgings more buffy. 



Adult w^a/^. —Length (skins), 194.3-203.2 (197.9): wing, 88.9-96.8 

 (94); tail, 84.1-89.2 (86.9); culmen, from base, 23.4-25.7 (24.6); depth 

 of bill at base, 8.9-9.7 (9.1); tarsus, 22.9-23.1 (23.1); middle toe 

 17.3-18 (17.8).^ 



^ Five specimens. 



